00:03
<{^_^}>
To get a sha256 hash of a new source, you can use the Trust On First Use model: use probably-wrong hash (for example: 0000000000000000000000000000000000000000000000000000) then replace it with the correct hash Nix expected.

00:11
<kiloreux>
I am trying to install a python dependency through nix. But getting the following error message "Download error on https://pypi.org/simple/pbr/: [Errno -2] Name or service not known -- Some packages may not be found!"

00:15
<exarkun>
monokrome: There's autorandr but I find it doesn't work very reliably (like right now it is mirroring my two displays and I have gotten tired of trying to force it to do the right thing so I'm just ignoring it ...)

03:20
<samueldr>
it will stay 5.2.2 since it was the version in nixpkgs when 19.03 was cut. now, for using virtualbox from unstable on your system, not sure if it's something that can be as simple as using overlays; I think there were major changes with 6.x

05:41
<dycan>
hi all. I use nixops to deploy a yesod project to google comute engine. But I have local packages so I got "called without required argument package_name". Is there any way to deploy just executables?

09:54
<srhb>
Need some psychic debugging. I have a NIX_PATH-entry called nixpkgs-overlays which refers to a directory containing a number of nix files that all include overlays. This used to work for both nixos-rebuild and plain nix-build, but suddenly I'm seeing some of my nixos overlays not being picked up?

12:56
<__monty__>
I'm trying to setup home-manager as a nix-darwin module. Setting `home-manager.users.toonn = import "$HOME/.config/nixpkgs/home.nix";` gives a warning about the string not representing an absolute path. How do I specify paths relative to $HOME in configuration.nix?

13:34
<eraserhd>
Hey, can I solicit an opinion? I'm creating modules for work, and this does things like set $KUBECONFIG and $VAULT_CACERT. At first, I set environment.variables.VAULT_CACERT, but this seemed to have bootstrap issues (or at least I worried about it).

13:34
<eraserhd>
So I made wrappers for vault that set VAULT_CACERT if it wasn't already set and so forth.

13:35
<eraserhd>
Is this a good idea? Anybody have experience with this situation?

13:35
<slabity>
eraserhd: That's pretty much what I do for my work software

14:16
<{^_^}>
import-from-derivation (IFD) is when you evaluate nix from a derivation result, for example `import (pkgs.writeText "n" "1 + 1")` will evaluate to 2. This is sometimes problematic because it requires evaluating some, building some, and then evaluating the build result.

15:54
<immae>
oh about that clever I know we discussed it some long time ago, but now activationScript is written so that it can only brick the machine if you have a bash syntax error (which would be detected as soon as you run it the first time), otherwise "normal" errors will continue the script until the end

15:55
<tobiasBora>
I ran a nix-channel --update, and now I can't upgrade my system anymore, because it tries to compile some gimp plugin, and fails:

20:01
<Henson>
if I'm building a derivation and want Nix to include certain packages in the requisities of the package, but don't necessary explicitly refer to paths within those packages in the build instructions, can I do that? I want socat and gnutar to be listed in the requisites of a script that depends on them.

21:06
<cizra>
Hello! How can I inject an environment variable to games launched via Steam? I think something unsets $LOCALE_ARCHIVE and so some programs can't find my en_US.UTF-8 locale, falling back to C.

21:06
<cizra>
Half-Life: Source is affected but still runs. Torchlight 2 fails to start because of missing locales.

21:07
<cizra>
Would setting environment.variables option be the right solution?

21:23
<lucasvo_2>
I'm trying to install nixos on a latest generation macbook pro but I can't even get the keyboard to work in the stable installer. I've been looking for various different installation tutorials but couldn't find anyone mention this. I'm about to try again with unstable but are there any other tips?

21:24
<gchristensen>
hmmm their macbooks for a long while haven't had a standard keyboard... did they go ahead and do this for their pros, too?

21:25
<lucasvo_2>
gchristensen: I'm able to interact with the bootloader and select what installation mode I want but after that I have two issues: the screen is garbled unless I pick the `nomodeset` option and it does not respond to any input on my keyboard in the shell once it's started in `nomodeset`

21:48
<matt`>
hey all. anyone know how building octave files is done? i'm packaging a program that supports an octave interface and as part of octave setup invokes a setup script that among other things calls `mkoctfile'. I've tried to compile this directly in the derivation (so that it's not called on the read-only nix store when the user invokes it) by invoking octave in a postfixup phase, but octave is acting a bit strange here. For instance, it

22:39
<selfsymmetric-mu>
Hi! I can't install Pymacs for Python 3 using what's already present in `pythonModules`, so I want to install a python module directly from this fork: https://github.com/bendikro/Pymacs